diff --git a/SlevomatCodingStandard/Sniffs/Functions/RequireMultiLineCallSniff.php b/SlevomatCodingStandard/Sniffs/Functions/RequireMultiLineCallSniff.php
index 4e248d84b..d2b49cea3 100644
--- a/SlevomatCodingStandard/Sniffs/Functions/RequireMultiLineCallSniff.php
+++ b/SlevomatCodingStandard/Sniffs/Functions/RequireMultiLineCallSniff.php
@@ -107,7 +107,7 @@ public function process(File $phpcsFile, $stringPointer): void
 			$lineEnd = $this->getLineEnd($phpcsFile, $parenthesisCloserPointer);
 			$lineLength = strlen($lineStart . $call . $lineEnd);
 		} else {
-			$lineEnd = $this->getLineEnd($phpcsFile, $parenthesisOpenerPointer);
+			$lineEnd = $this->getLineEnd($phpcsFile, $parenthesisOpenerPointer + 1);
 			$lineLength = strlen($lineStart . $lineEnd);
 		}
 
diff --git a/tests/Sniffs/Functions/data/requireMultiLineCallNoErrors.php b/tests/Sniffs/Functions/data/requireMultiLineCallNoErrors.php
index 52f342d59..e301aa5bd 100644
--- a/tests/Sniffs/Functions/data/requireMultiLineCallNoErrors.php
+++ b/tests/Sniffs/Functions/data/requireMultiLineCallNoErrors.php
@@ -34,3 +34,7 @@ public function foo()
 $array = array_merge([], array_map(function (): string {
 	return 'very looooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooong value';
 }, []));
+
+$array = array_map(['a loooooooooooooooooong value that exactly fits into the line length limit'], function (): string {
+	return 'foo';
+});